Portable saw rig



March 3, 1931. D. 1.. TUTTLE PORTABLE SAW RIG Filed May 19, 1927 INVENTOR. fi f 22.0? v

ATTORNEY Patented 3, 1931.

UNITED STATES PATEN OFFICE I DWIGHT I1. TUTTLE, bl NEAR IFU'RAL HALL, NORTH CAROLINA.

PORTABLE saw are Application filed Kay 19, 1927. Serial No. 192,708.

My invention relates to a portable saw rig in which the rig is propelled from place to place by motive power mounted in the dev ce,

' and which motive power is also used to drive asaw while the device remains stationary.

An object of my invention-is to provide a sawing machine having an internal combustion engine mounted thereon, and connections between the engine and the rear wheels of the device for propelling the same from place to place, and means for connecting the engine to the saw to drive the same and to disconnect the engine from the rear wheels of the device.

Another object of my invention is to provide a'self propelled sawing machine in which the propelling means may be'selectively employed for the propulsion of the sawing machine from place to place.

Another object of my invention is to provide a sawing machine on a self propelled framework, and also having means for regulating the flow of gasoline automatically as a result of the operation of the sawing devices.

. Another object of my invention is to provide a self propelled sawing machine having means for regulating the speed of the engine operated automatically by the mechanism for feeding the material to the saw.

In the drawings, I have shown apreferred embodiment of my invention, in which- Figure 1 is a side elevation of my sawing machine, showing a portion of the nearer wheels broken away for sake of clearness;

Figure 2 is a top plan view of my sawing machine.

Referring-more particularly to the drawings, the numeral 10 indicates the side members of the framework of my machine which is suitably mounted on wheels 11, with the front end of the framework being joined by the member 12 while a rotatable shaft 13 is secured to the rear end of the. members 10.

A suitable internal combustion engine 14 is mounted in the front end of the framework and to the rear of this motor there is the transmission 15, and the drive shaft 16 extends rearwardly from the transmission thru a suitable bearing 17 mounted on the cross mounted the pulley member 18. Another cross member 19 is mounted on the members 10 and running from the member 18 to the member 19 there is the additional member 20. The drive shaft 16 extends rearwardly thru the bearing 21 and into the drive shaft housing .22. The

drive shaft 16 is cut into approximately midway between the members 18 and 19 and the bevel gear 23 is fixedly securedto the forward end of the drive shaft, and the conventional dog clutch 24 is slidably secured on the forward end of the rear portion of the drive shaft, so that when. the dog clutch is in the position back against the bearing 21 the two portions of the drive shaft will be discon- 68 nected, but when the dog clutch is in the position shown in Figure 2 the two portions of the drive shaft will be connected for propelling the machine from place to place. This dog clutch is operated by a suitable 10 lever 25. In the bearings 26 and 27 there is rotatably mounted the shaft 28, which has the bevel gear 29 on one end thereof meshing at all times with the bevel gear 23, and on the other. end of the shaft'28 there is fixedly 7 The rotatable shaft 13 has the pulley 31 mounted on one end thereof, and the saw 32 on the other end, and a belt 33 is passed over the pulleys 30 and 31 for driving the saw 32. A belt tightener pulley 34, ismounted on the crank arm 35.

Secured to the rear end of the framework are the downwardly'and rearwardly projecting members 36 and 37 on which the saw table 38 is pivotally mounted, and a rod 39 is pivotally securedto the saw table and penetrates a hole in the framework, and a coiled spring is secured there-around, which spring normally forces the saw table away from the saw.

Pivotally secured to the saw table is the forwardly extendin rod 41 which has its forward end connec to a vertically disposed member 42, which member 42 has a crank arm on both its lower and upper ends. The 05 carburetor lever 43 has a crooked rod 44 secured thereto which rod extends to the conventional gasoline feeding lever 45, but is slidabl mounted therein to allow the rod 44 to be rawn toward the carburetor without disturbing the lever 45. Pivotally mounted on the upper end of the crank arm member 42 is the rod 46 which hooksaround the mem- -ber 44 at a bend near the point where it connects to the carburetor lever 43 so that when the rod 46 is pulled outward the gasoline lever will be operated to increase the amount of asoline feed to the engine.

5 lever 50 acts to hold the transmission pedal in neutral when the saw is being used. While the machine is being transported the ulley 30 will be rotated, but the belt 33 will e removed from the pulleys so the saw will not be driven while the machine is being driven from place to place.-

The saw, saw table, and wei ht pulley are mounted on the members 51 an 52, and when it is desired these may be removed and a conventional truck body secured on the chassis, and the device can then be used as an ordinary truck. Or, instead of the truck body bein mounted on the chassis, or even with sucfi body in place, the pulley 30 can be used to drive threshers, m1lls, shreaders, and any other type of machinery.

In the drawings and specification I have set forth a referred embodiment of my invention, and although specific terms are employed, they are used in a generic and de- 'scriptive sense only, and not for purposes of limitation, the-scope of the invention being set forth in the appended claim.

I claim: In a power take-off mechanism for automobiles havin an internal combustion engine, a .drive s aft extending from said internal combustion engine to the rear axle of the automobile, a bevel gear fixedly mounted on said drive shaft, a transversely disposed 40 shaft mounted above said drive shaft and havingla bevel gear thereon adapted to engage t e bevel ear on the drive shaft at all times, a second transversely disposed shaft mounted in the framework of the automobile, 5 a belt adapted to connect the two shafts together for rotation together, a dog clutch mounted on said drive shaft and bein adapted to disconnect the rear portion of the drive shaft from the front portion of the drive shaft when moved forwardly, and being adapted to connect both front and rear portions of the drive shaft together when moved rearwardly.

In testimony whereof I aflix my si ature.

DWIGHT L. TUT LE. 

